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Finding the Fourth Proportional to 211,248.69, 316,925.01 and 61,490.36

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Solution

The fourth proportional to 211,248.69, 316,925.01 and 61,490.36 is: 92,250.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,248.69 : 316,925.01 = 61,490.36 : x
  2. Step 2: Convert to fraction form
    211,248.69/316,925.01 = 61,490.36/x
  3. Step 3: Cross multiply
    211,248.69x = 316,925.01 × 61,490.36
  4. Step 4: Simplify right side
    211,248.69x = 19,487,831,373.28
  5. Step 5: Solve for x
    x = 19,487,831,373.28/211,248.69
  6. Step 6: Final answer
    x = 92,250.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.